US8388297B2 - Coil downender - Google Patents

Coil downender Download PDF

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Publication number
US8388297B2
US8388297B2 US12/694,401 US69440110A US8388297B2 US 8388297 B2 US8388297 B2 US 8388297B2 US 69440110 A US69440110 A US 69440110A US 8388297 B2 US8388297 B2 US 8388297B2
Authority
US
United States
Prior art keywords
coil
horizontal axis
cradle
pallet
horizontal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US12/694,401
Other versions
US20110182711A1 (en
Inventor
Ward M. Holloway
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies USA LLC
Original Assignee
Siemens Industry Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Industry Inc filed Critical Siemens Industry Inc
Assigned to MORGAN CONSTRUCTION COMPANY reassignment MORGAN CONSTRUCTION COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOLLOWAY, WARD M.
Priority to US12/694,401 priority Critical patent/US8388297B2/en
Assigned to SIEMENS INDUSTRY, INC. reassignment SIEMENS INDUSTRY, INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: MORGAN CONSTRUCTION COMPANY
Priority to TW099144720A priority patent/TWI535505B/en
Priority to KR1020127019766A priority patent/KR20120123376A/en
Priority to ES11737422.3T priority patent/ES2468016T3/en
Priority to CN201180007103.5A priority patent/CN102883831B/en
Priority to JP2012551180A priority patent/JP5972175B2/en
Priority to MX2012008622A priority patent/MX2012008622A/en
Priority to BR112012018536A priority patent/BR112012018536A2/en
Priority to RU2012136434/02A priority patent/RU2518808C2/en
Priority to CA2788094A priority patent/CA2788094A1/en
Priority to PL11737422T priority patent/PL2528700T3/en
Priority to EP11737422.3A priority patent/EP2528700B1/en
Priority to PCT/US2011/020103 priority patent/WO2011094032A2/en
Publication of US20110182711A1 publication Critical patent/US20110182711A1/en
Publication of US8388297B2 publication Critical patent/US8388297B2/en
Application granted granted Critical
Assigned to Primetals Technologies USA LLC reassignment Primetals Technologies USA LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SIEMENS INDUSTRY, INC.
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
    • B21C47/242—Devices for swinging the coil from horizontal to vertical, or vice versa
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
    • B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles

Definitions

  • This invention relates generally to material handling equipment, and is concerned in particular with the provision of a novel and improved downender for use in a rolling mill to translate cylindrical coils of hot rolled products from vertical to horizontal positions.
  • the axis of the coil does not extend across the axis of rotation about which the coil is translated from a vertical to a horizontal position. This increases the offset of the center of gravity of the coil from the axis of rotation, which in turn increases the power required to effect coil translation.
  • equipment designers have conventionally resorted to the use of hydraulic linear actuators, which occupy considerable space and require expensive associated components, including hydraulic pumps, piping, and circuitry.
  • the objective of the present invention is to provide an improved downender in which the coil axis extends across the rotational axis about which the coil is translated, thereby advantageously positioning the coil center of gravity closer to the downender's rotational axis. This in turn reduces power requirements and makes it possible to employ less complicated and less expensive electrically powered drive components.
  • the present invention comprises an apparatus for downending a vertically disposed cylindrical coil supported on an underlying pallet, with a stem projecting from the pallet and extending axially through the coil.
  • the apparatus includes a cradle rotatable about a horizontal axis.
  • a table on the cradle is configured and arranged to receive and retain the pallet with the coil in a vertical first position at which the coil axis extends across the horizontal rotational axis of the cradle.
  • An electrically powered drive serves to rotate the cradle about its horizontal axis to translate the coil from its vertical position to a horizontal position.
  • FIG. 1 is a side elevational view of a downender in accordance with the present invention, with a coil supported in a vertical first position;
  • FIG. 2 is a top plan view of the downender
  • FIG. 3 is an end view of the downender
  • FIG. 4 is a sectional view taken on line 4 - 4 of FIG. 3 ;
  • FIG. 5 is a view similar to FIG. 1 showing the coil downended to a horizontal second position
  • FIG. 6 is an enlarged view of the circled portion shown in FIG. 1 .
  • an apparatus for downending a vertically disposed cylindrical coil “C” is shown at 10 .
  • the coil is supported on an underlying pallet 12 , with a stem 14 projecting upwardly from the pallet and axially through the coil.
  • the apparatus includes a cradle 16 rotatable about a horizontal axis “A H ”.
  • a table 18 on the cradle includes rollers 20 on which the pallet 12 is received along axis A H .
  • Hook-shaped brackets 22 serve to retain the pallet 12 on the table rollers 20 , with the coil in a first vertical position at which the coil axis A C extends across the horizontal axis A H , thus aligning the center of gravity of the coil with axis A H .
  • the cradle is provided with at least one and preferably two partially circular tracks 24 arranged concentrically with respect to axis A H .
  • the tracks 24 are supported on stationary bearings 26 for rotation about axis A H .
  • the tracks 24 are parallel and spaced one from the other along axis A H , with the table 18 located between the tracks.
  • An electrically powered drive serves to rotate the cradle about axis A H in order to translate the coil from its vertical first position as shown in FIGS. 1-3 , to a horizontal second position as shown in FIG. 5 .
  • the drive comprises chains 28 of finite length extending around the tracks 24 , with the opposite ends of the chains fixed as at 30 with respect to the tracks.
  • each chain 28 extends over idler sprockets 32 and around a drive sprocket 34 .
  • the drive sprockets 34 of the chains 28 are supported on a common shaft 36 driven by an electrically powered gear motor 38 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Replacement Of Web Rolls (AREA)
  • Chain Conveyers (AREA)
  • Jigs For Machine Tools (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Packaging Of Special Articles (AREA)
  • Linear Motors (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Attitude Control For Articles On Conveyors (AREA)

Abstract

An apparatus is disclosed for downending a vertically disposed cylindrical coil supported on an underlying pallet, with a stem projecting from the pallet through the coil. The apparatus comprises a cradle rotatable about a horizontal axis. A table on the cradle is configured and arranged to receive and retain the pallet with the coil in a vertical first position at which the coil extends across the horizontal axis. An electrically powered drive serves to rotate the cradle about the horizontal axis to translate the coil from its vertical first position to a horizontal second position.

Description

BACKGROUND DISCUSSION
1. Field of the Invention
This invention relates generally to material handling equipment, and is concerned in particular with the provision of a novel and improved downender for use in a rolling mill to translate cylindrical coils of hot rolled products from vertical to horizontal positions.
2. Description of the Prior Art
In the typical rolling mill downender, the axis of the coil does not extend across the axis of rotation about which the coil is translated from a vertical to a horizontal position. This increases the offset of the center of gravity of the coil from the axis of rotation, which in turn increases the power required to effect coil translation. In order to satisfy this increased power demand, equipment designers have conventionally resorted to the use of hydraulic linear actuators, which occupy considerable space and require expensive associated components, including hydraulic pumps, piping, and circuitry.
The objective of the present invention is to provide an improved downender in which the coil axis extends across the rotational axis about which the coil is translated, thereby advantageously positioning the coil center of gravity closer to the downender's rotational axis. This in turn reduces power requirements and makes it possible to employ less complicated and less expensive electrically powered drive components.
SUMMARY OF THE INVENTION
Broadly stated, the present invention comprises an apparatus for downending a vertically disposed cylindrical coil supported on an underlying pallet, with a stem projecting from the pallet and extending axially through the coil. The apparatus includes a cradle rotatable about a horizontal axis. A table on the cradle is configured and arranged to receive and retain the pallet with the coil in a vertical first position at which the coil axis extends across the horizontal rotational axis of the cradle. An electrically powered drive serves to rotate the cradle about its horizontal axis to translate the coil from its vertical position to a horizontal position.
These and other features and their attendant advantages will now be described in greater detail with reference to the accompanying drawings, wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side elevational view of a downender in accordance with the present invention, with a coil supported in a vertical first position;
FIG. 2 is a top plan view of the downender;
FIG. 3 is an end view of the downender;
FIG. 4 is a sectional view taken on line 4-4 of FIG. 3;
FIG. 5 is a view similar to FIG. 1 showing the coil downended to a horizontal second position; and
FIG. 6 is an enlarged view of the circled portion shown in FIG. 1.
 DETAILED DESCRIPTION
Referring now to the drawings, an apparatus for downending a vertically disposed cylindrical coil “C” is shown at 10. The coil is supported on an underlying pallet 12, with a stem 14 projecting upwardly from the pallet and axially through the coil.
The apparatus includes a cradle 16 rotatable about a horizontal axis “AH”. A table 18 on the cradle includes rollers 20 on which the pallet 12 is received along axis AH. Hook-shaped brackets 22 serve to retain the pallet 12 on the table rollers 20, with the coil in a first vertical position at which the coil axis AC extends across the horizontal axis AH, thus aligning the center of gravity of the coil with axis AH.
The cradle is provided with at least one and preferably two partially circular tracks 24 arranged concentrically with respect to axis AH. The tracks 24 are supported on stationary bearings 26 for rotation about axis AH. As can best be seen in FIG. 3, the tracks 24 are parallel and spaced one from the other along axis AH, with the table 18 located between the tracks.
An electrically powered drive serves to rotate the cradle about axis AH in order to translate the coil from its vertical first position as shown in FIGS. 1-3, to a horizontal second position as shown in FIG. 5. The drive comprises chains 28 of finite length extending around the tracks 24, with the opposite ends of the chains fixed as at 30 with respect to the tracks.
As can best be seen in FIG. 6, a segment of each chain 28 extends over idler sprockets 32 and around a drive sprocket 34. As shown in FIG. 3, the drive sprockets 34 of the chains 28 are supported on a common shaft 36 driven by an electrically powered gear motor 38.
In light of the foregoing, it will now be understood by those skilled in the art that by initially positioning the coil C with its axis AC extending across axis AH, thus aligning the center of gravity of the coil with axis AH, the power required to rotate the coil to the horizontal position shown in FIG. 5 is less than the power that would be required to do so if the coil axis AC did not extend across axis AH. This reduced power requirement makes it possible to employ a more compact and less expensive electrically powered drive.
The foregoing description has been set forth to illustrate the invention and is not intended to be limiting. Since further modifications of the described embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the scope of invention should be limited solely with reference to the appended claims and equivalents thereof.

Claims (9)

1. Apparatus for downending a vertically disposed cylindrical coil supported on an underlying pallet, with a stem projecting from the pallet through the coil, said apparatus comprising:
a cradle rotatable about a horizontal axis, said cradle having at least one partially circular track arranged concentrically with respect to said horizontal axis, said track being supported on stationary bearings for rotation about said horizontal axis;
a table on said cradle, said table being configured and arranged to receive and retain said pallet with said coil in a vertical first position above said horizontal axis and at which the coil axis extends across said horizontal axis; and
drive means for rotating said cradle about said horizontal axis to translate said coil from said vertical first position to a horizontal second position;
wherein said drive means comprises a chain of finite length extending around said track, with opposite ends of said chain fixed with respect to said track, and with a segment of said chain between the chain ends being engaged by a sprocket, whereby rotation of said sprocket will result in rotation of said track and said cradle about said horizontal axis.
2. The apparatus of claim 1 wherein said sprocket is electrically driven.
3. The apparatus of claim 1 wherein two of said circular tracks are arranged in parallel planes, with said table being located between said tracks.
4. The apparatus of claim 1 wherein said table is a roller table on which said pallet is received along said horizontal axis.
5. The apparatus of claim 4 further comprising means for retaining said pallet on said roller table during translation of said coil from said vertical first position to said horizontal second position.
6. The apparatus of claim 3 wherein said table is a roller table on which said pallet is received along said horizontal axis.
7. The apparatus of claim 6 further comprising means for retaining said pallet on said roller table during translation of said coil from said vertical first position to said horizontal second position.
8. Apparatus for downending a vertically disposed cylindrical coil supported on an underlying pallet, with a stem projecting from the pallet through the coil, said apparatus comprising:
a cradle rotatable about a horizontal axis, said cradle having a pair of partially circular tracks arranged concentrically with respect to and spaced one from the other along said horizontal axis;
a table positioned on said cradle between said tracks, said cradle being configured and arranged to receive and retain said pallet with said coil in a vertical first position above said horizontal axis and at which the coil axis extends across said horizontal axis; and
drive means for rotating said cradle about said horizontal axis to translate said coil from said first position to a horizontal second position, said drive means comprising chains of finite length extending around said tracks, with opposite ends of said chains fixed with respect to their respective tracks, and with segments of said chains between said ends being engaged by sprockets, whereby rotation of said sprockets will result in rotation of said tracks and said cradle about said horizontal axis.
9. The apparatus of claim 8 wherein said sprockets are carried on a common shaft driven by an electrically powered motor.
US12/694,401 2010-01-27 2010-01-27 Coil downender Expired - Fee Related US8388297B2 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US12/694,401 US8388297B2 (en) 2010-01-27 2010-01-27 Coil downender
TW099144720A TWI535505B (en) 2010-01-27 2010-12-20 Apparatus for downender
PCT/US2011/020103 WO2011094032A2 (en) 2010-01-27 2011-01-04 Coil downender
BR112012018536A BR112012018536A2 (en) 2010-01-27 2011-01-04 coil descender
EP11737422.3A EP2528700B1 (en) 2010-01-27 2011-01-04 Coil downender
CN201180007103.5A CN102883831B (en) 2010-01-27 2011-01-04 Coil turning machine
JP2012551180A JP5972175B2 (en) 2010-01-27 2011-01-04 Coil down ender
MX2012008622A MX2012008622A (en) 2010-01-27 2011-01-04 Coil downender.
KR1020127019766A KR20120123376A (en) 2010-01-27 2011-01-04 Coil downender
RU2012136434/02A RU2518808C2 (en) 2010-01-27 2011-01-04 Coil downender
CA2788094A CA2788094A1 (en) 2010-01-27 2011-01-04 Coil downender
PL11737422T PL2528700T3 (en) 2010-01-27 2011-01-04 Coil downender
ES11737422.3T ES2468016T3 (en) 2010-01-27 2011-01-04 Coil Turning Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/694,401 US8388297B2 (en) 2010-01-27 2010-01-27 Coil downender

Publications (2)

Publication Number Publication Date
US20110182711A1 US20110182711A1 (en) 2011-07-28
US8388297B2 true US8388297B2 (en) 2013-03-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
US12/694,401 Expired - Fee Related US8388297B2 (en) 2010-01-27 2010-01-27 Coil downender

Country Status (13)

Country Link
US (1) US8388297B2 (en)
EP (1) EP2528700B1 (en)
JP (1) JP5972175B2 (en)
KR (1) KR20120123376A (en)
CN (1) CN102883831B (en)
BR (1) BR112012018536A2 (en)
CA (1) CA2788094A1 (en)
ES (1) ES2468016T3 (en)
MX (1) MX2012008622A (en)
PL (1) PL2528700T3 (en)
RU (1) RU2518808C2 (en)
TW (1) TWI535505B (en)
WO (1) WO2011094032A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3141308A1 (en) 2015-09-10 2017-03-15 Primetals Technologies USA LLC Direct coil transfer system
US11999579B2 (en) * 2018-10-29 2024-06-04 Usnr, Llc Tilt hoists and lumber unstacking systems

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US8996141B1 (en) 2010-08-26 2015-03-31 Dunan Microstaq, Inc. Adaptive predictive functional controller
US9139262B1 (en) * 2013-08-23 2015-09-22 The Boeing Company Object transportation and reorientation apparatus
CN103466301B (en) * 2013-09-30 2015-08-12 中天钢铁集团有限公司 For the station that rolls out of P/F line transport systems
CN103949496B (en) * 2014-05-07 2017-01-18 中国重型机械研究院股份公司 Roll-up slewing gear
CN105390325B (en) * 2015-11-20 2018-03-23 平高集团有限公司 A kind of high-voltage switch gear covers effective shielding erecting device
CN106216406A (en) * 2016-07-26 2016-12-14 天津天重中直科技工程有限公司 A kind of tipping arrangement
JP7452345B2 (en) 2020-09-17 2024-03-19 村田機械株式会社 Rotating equipment and conveyor equipment
CN113636314B (en) * 2021-08-31 2024-02-06 长沙华恒机器人系统有限公司 A suit upset machine for LNG bottle assembly

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US3373829A (en) * 1966-07-20 1968-03-19 Link Bell Company Weighing mechanism for railroad car dumpers
US3753505A (en) 1971-03-10 1973-08-21 Fmc Corp Article roll-over device
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US5567105A (en) * 1995-04-07 1996-10-22 Brown & Williamson Tobacco Corporation Automated transfer car for transporting material
US5735477A (en) 1997-01-22 1998-04-07 Morgan Construction Company Stem coil pallet for making half weight coils

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US279868A (en) * 1883-06-19 Machine for unloading eaileoad oars
US400049A (en) * 1889-03-26 Device for unloading cars
US1266094A (en) * 1917-08-27 1918-05-14 Jacob H Beckman Automobile-turning device.
US2146893A (en) * 1938-05-18 1939-02-14 Logan Co Inc Article handling apparatus
US3206049A (en) 1963-03-26 1965-09-14 Deau Mfg Co Turnover cradle
US3212658A (en) * 1963-08-29 1965-10-19 United States Steel Corp Apparatus for handling coils of strip
US3373829A (en) * 1966-07-20 1968-03-19 Link Bell Company Weighing mechanism for railroad car dumpers
US3753505A (en) 1971-03-10 1973-08-21 Fmc Corp Article roll-over device
US3796329A (en) * 1971-04-21 1974-03-12 Fmc Corp Clamp mechanism for rotary car dumper
US3868101A (en) * 1972-08-10 1975-02-25 Mitsui Shipbuilding Eng Welding positioner
US4056186A (en) * 1975-04-21 1977-11-01 Morgan Construction Company Coil handling apparatus and system
US5567105A (en) * 1995-04-07 1996-10-22 Brown & Williamson Tobacco Corporation Automated transfer car for transporting material
US5735477A (en) 1997-01-22 1998-04-07 Morgan Construction Company Stem coil pallet for making half weight coils

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3141308A1 (en) 2015-09-10 2017-03-15 Primetals Technologies USA LLC Direct coil transfer system
US20170073161A1 (en) * 2015-09-10 2017-03-16 Primetals Technologies USA LLC Direct coil transfer system
US10087003B2 (en) * 2015-09-10 2018-10-02 Primetals Technologies USA LLC Direct coil transfer system
US11999579B2 (en) * 2018-10-29 2024-06-04 Usnr, Llc Tilt hoists and lumber unstacking systems
US20250033907A1 (en) * 2018-10-29 2025-01-30 Usnr, Llc Tilt hoists and lumber unstacking systems

Also Published As

Publication number Publication date
TWI535505B (en) 2016-06-01
RU2518808C2 (en) 2014-06-10
PL2528700T3 (en) 2014-09-30
MX2012008622A (en) 2012-08-15
WO2011094032A2 (en) 2011-08-04
RU2012136434A (en) 2014-03-10
CN102883831B (en) 2015-03-11
JP2013517950A (en) 2013-05-20
CN102883831A (en) 2013-01-16
US20110182711A1 (en) 2011-07-28
EP2528700A2 (en) 2012-12-05
TW201130577A (en) 2011-09-16
WO2011094032A3 (en) 2012-11-01
BR112012018536A2 (en) 2016-04-12
JP5972175B2 (en) 2016-08-17
EP2528700B1 (en) 2014-04-16
KR20120123376A (en) 2012-11-08
CA2788094A1 (en) 2011-08-04
ES2468016T3 (en) 2014-06-13

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AS Assignment

Owner name: MORGAN CONSTRUCTION COMPANY, MASSACHUSETTS

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